American Airlines Flight with 95 Passengers and 6 Crew Lands Safely; 737 MAX aircraft have been scrutinized for years.

American Airlines Co announced Friday that a Boeing 737 MAX traveling to Newark Liberty International Airport in New Jersey declared an emergency after the captain shut down an engine due to a possible mechanical problem.

The American flight 2555 from Miami with 95 passengers and six crew members landed safely in Newark without incident, the airline said.

The potential issue was related to an indication of engine oil pressure or volume, and not anything related to the MCAS system that was linked to two fatal 737 MAX crashes in 2018 and 2019 leading to the 20 month landing of the plane.

The 737 Max has been under scrutiny for some time. Aviation authorities around the world dropped 737 Max aircraft on the ground in March 2019 after fatal crashes with the aircraft model in Ethiopia and off the coast of Indonesia that occurred within five months.

Boeing said it was aware of the American flight and the Federal Aviation Administration (FAA) said it would investigate.

American became the first U.S. airline to resume 737 MAX flights late last year after the FAA approved Boeing’s safety updates.

When the plane was released for flight again, FAA Administrator Steve Dickson said he was confident the jet would be safe but cautioned that all commercial airliners occasionally experience mechanical problems in flight.

“Because of this, it is inevitable that a Boeing 737 MAX will return to its original airport, reroute or land at its destination at a later date with an actual or suspected problem in flight,” he said.

The FAA assesses all events that a US airline is involved in, adding, “It is very important to distinguish between these routine events that occur with aircraft and the acute safety issues that result in the loss of life and the grounding of the MAX led. ”